Fix: Resolve 'attempt to index local 'meta' (a nil value)'

[kenjiThiago]

After the changes on the commit 1f7da07, when adding more information on the column and having the option to show hidden files set to true, for example:

require("oil").setup({
    view_options = {
        show_hidden = true,
    },

    columns = {
        "size",
    },
})

When open nvim I get an error: attempt to index local 'meta' (a nil value) on the file 'files.lua', line 59

I changed the file 'columns.lua' and add the code:

  local meta = entry[FIELD_META]
  if not meta then
    return EMPTY
  end

to check if entry[FIELD_META] is nil, and if it is return EMPTY.

I don't know if is the best solution, but the changes seems to fix the issue.

[IanLiuTW]

Having the exact same issue after update.

[datsfilipe]

Same issue here too, after the update.

[stevearc]

Appreciate jumping in to get the error fixed, but I went with a different approach (254bc66).